TY UMa
| Simbad link | TY UMa |
|---|---|
| Source publication | Li, K. (2015) - The Active Contact Binary Ty UMa Revisited: is It a Quadruple Star? |
| ADS link | 2015AJ....149..120L |
| Name in Source publication | TY UMa |
| Orbital period in days (P [d]) | 0.354548 |
| Mass ratio (q) | 0.4 |
| Mass ratio determination | Spectroscopic |
| Temperature determination | Unknown |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.354548 |
| Mass ratio (q) | 0.4 |
| Orbital inclination in degrees (i [o]) | 84.9 |
| Fillout (f) | 0.13 |
| Primary temperature in Kelvins (T1 [K]) | 6229 |
| Secondary temperature in Kelvins (T2 [K]) | 6250 |
| Primary polar radius in units of orbital separation (r1p) | 0.4394 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2881 |
| Surface potential (Ω) | 2.6386 |
| Orbital separation in solar radii (a [R]) | 2.74 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.29 |
| Secondary radius in solar units (R2 [R]) | 0.85 |
| Primary mass in solar units (M1 [M]) | 1.57 |
| Secondary mass in solar units (M2 [M]) | 0.62 |
| Primary temperature in kelvins (T1 [K]) | 6229 |
| Secondary temperature in Kelvins (T2 [K]) | 6250 |
| Primary luminosity in solar units (L1 [L]) | 0.99 |
| Secondary luminosity in solar units (L2 [L]) | 0.63 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 4.52 |
| Orbital period in days (P [d]) | 0.354548 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.044755 |
| Cyclic period variation in years (Pc [y]) | 51.7 |
| Designation | Gaia DR2 1573684680204473600 |
|---|---|
| RA | 182:15:35.30232 |
| DEC | 56:01:54.37434 |
| l | 134.8325438 |
| b | 60.10608469 |
| G [mag] | 11.562933 |
| G_bp [mag] | 11.8431635 |
| G_rp [mag] | 11.044905 |
| Parallax | 3.287128675 |
| Distance [pc] | 4.25E-09 |
| Temperature [K] | 5812.1 |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | 1.259107 |
| Luminosity [L] | 1.6298676 |
| Temperature [K] | 5840.54 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.078 |
| Metallicity [Fe/H] | -0.117 |
| Simbad link | TY UMa |
|---|---|
| J magnitude | 10.652 |
| H magnitude | 10.382 |
| K magnitude | 10.283 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 12.42 |
| Johnson_V magnitude | 11.59 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 11.5629 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |